diff --git a/core_functions.sh b/core_functions.sh
index 76ff7e1..ebf8357 100644
--- a/core_functions.sh
+++ b/core_functions.sh
@@ -71,7 +71,7 @@ function runCmd () {
 function pressKey () {
   printf "$*\n"
   if which mpg123 >/dev/null; then
-    mpg123 -q $scriptDir/notify.mp3 &
+    mpg123 -q /opt/yggdrasil/notify.mp3 &
   fi
   printf $INV
   read -p "Press <Enter> key to continue ..."
diff --git a/vars.sh b/vars.sh
index aeb51b8..1ff9b08 100644
--- a/vars.sh
+++ b/vars.sh
@@ -13,18 +13,13 @@
 #
 # app version number
 #
-version="0.3.0"
+version="0.4.0"
 
 #
 # myHomedir is used in full paths to the homedir
 #
 myHomedir=$(whoami)
 
-#
-# script base dir
-#
-scriptDir=$(dirname $0)
-
 #
 # logfile
 #
diff --git a/yggdrasil.sh b/yggdrasil.sh
index 989d7aa..b7703e5 100755
--- a/yggdrasil.sh
+++ b/yggdrasil.sh
@@ -10,12 +10,22 @@
 #
 # include functions and vars from external files
 #
-source $(dirname $0)/vars.sh
-source $(dirname $0)/core_functions.sh
-source $(dirname $0)/repo_functions.sh
-source $(dirname $0)/install_functions.sh
-source $(dirname $0)/menus_functions.sh
-source $(dirname $0)/tools_functions.sh
+dir=$(dirname $0)
+if [ ! $dir == "/opt/yggdrasil" ]; then
+  source /opt/yggdrasil/vars.sh
+  source /opt/yggdrasil/core_functions.sh
+  source /opt/yggdrasil/repo_functions.sh
+  source /opt/yggdrasil/install_functions.sh
+  source /opt/yggdrasil/menus_functions.sh
+  source /opt/yggdrasil/tools_functions.sh
+else
+  source $(dirname $0)/vars.sh
+  source $(dirname $0)/core_functions.sh
+  source $(dirname $0)/repo_functions.sh
+  source $(dirname $0)/install_functions.sh
+  source $(dirname $0)/menus_functions.sh
+  source $(dirname $0)/tools_functions.sh
+fi
 
 #
 # check if the script is running in root/sudo
@@ -113,8 +123,6 @@ done
 # Menu Mode                                                                   #
 #-----------------------------------------------------------------------------#
 
-clear
-
 # show Yggdrasil logo
 dispLogo